CVE-2021-26906
Summary
| CVE | CVE-2021-26906 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-02-18 20:15:00 UTC |
| Updated | 2021-02-24 17:03:00 UTC |
| Description | An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure. |
Risk And Classification
Problem Types: CWE-404
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Digium | Asterisk | All | All | All | All |
| Application | Digium | Asterisk | All | All | All | All |
| Application | Digium | Certified Asterisk | 16.8 | - | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc1 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc2 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc3 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc4 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert2 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert3 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc1 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc2 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc3 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc4 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert5 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | - | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc1 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc2 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc3 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert1-rc4 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert2 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert3 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc1 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc2 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc3 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert4-rc4 | All | All |
| Application | Digium | Certified Asterisk | 16.8 | cert5 | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [ASTERISK-29196] res_pjsip: Segmentation fault - Digium/Asterisk JIRA | CONFIRM | issues.asterisk.org | Issue Tracking, Patch, Vendor Advisory |
| Asterisk Project Security Advisory - AST-2021-005 ≈ Packet Storm | MISC | packetstormsecurity.com | Third Party Advisory |
| Index of /pub/security | MISC | downloads.asterisk.org | Vendor Advisory |
| AST-2021-005 | CONFIRM | downloads.asterisk.org | Vendor Advisory |
| Full Disclosure: AST-2021-005: Remote Crash Vulnerability in PJSIP channel driver | FULLDISC | seclists.org | Mailing List, Patch, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 180220 Debian Security Update for asterisk (CVE-2021-26906)
- 500035 Alpine Linux Security Update for asterisk
- 501378 Alpine Linux Security Update for asterisk
- 503868 Alpine Linux Security Update for asterisk
- 690440 Free Berkeley Software Distribution (FreeBSD) Security Update for asterisk (1bb2826b-7229-11eb-8386-001999f8d30b)